<template>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input type="text" v-model="uname" />
    </div>
    <div>
      <span>年龄:</span>
      <input type="number" v-model="age" />
    </div>
    <div>
      <span>性别:</span>
      <select v-model="gender">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="addlist">添加/修改</button>
    </div>
    <div>
      <table border="1" cellpadding="10" cellspacing="0">
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="item in arr" :key="item.id">
          <td>{{ item.id }}</td>
          <td>{{ item.uname }}</td>
          <td>{{ item.age }}</td>
          <td>{{ item.gender }}</td>
          <td>
            <button @click="delList(item.id)">删除</button>
            <button @click="edit(item.id)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      id: "",
      uname: "",
      age: 0,
      gender: "女",
      flag: true,

      arr: [
        {
          id: "1",
          uname: "赵三",
          age: "66",
          gender: "女",
        },
        {
          id: "2",
          uname: "李四",
          age: "26",
          gender: "男",
        },
      ],
    };
  },

  methods: {
    addlist() {
      if (this.flag) {
        if (this.uname && this.age) {
          const unm = Number(this.arr[this.arr.length - 1].id) + 1;
          // console.log(unm);
          const obj = {
            id: unm,
            uname: this.uname,
            age: this.age,
            gender: this.gender,
          };

          this.arr = [...this.arr, obj];
          this.uname = "";
          this.age = 0;
        } else {
          alert("请输入正确的数据");
        }
      } else {
        
        const list = this.arr.filter((item) => item.uname === this.uname);
        
          list[0].id = this.id
          list[0].uname = this.uname;
          list[0].age = this.age;
          list[0].gender = this.gender;
       

        this.uname = "";
        this.age = 0;
        this.gender = "女";
        this.flag = true;
      }
    },

    delList(data) {
      // console.log(data);
      this.arr = this.arr.filter((item) => item.id !== data);
    },

    edit(data) {
      const arrlist = this.arr.filter((item) => item.id === data);
      // console.log(arrlist);
      this.id = arrlist[0].id;
      this.uname = arrlist[0].uname;
      this.age = arrlist[0].age;
      this.gender = arrlist[0].gender;
      this.flag = false;
    },
  },

  computed: {
    // addEdit:{
    //   get(){
    //     return this.arr
    //   },
    //   set(value){
    //     console.log(value);
    //     this.arr = this.arr[value]
    //   }
    // }
  },
};
</script>
